Business

Physical activity

Mathematics

Human–computer interaction

Statistics

Data collection

World Wide Web

Wearable computer

Marketing

Embedded system

Artificial intelligence

Market research

Mobile device

Data science

Smartwatch

Computer science

Wearable technology

Eye tracking

BitTorrent tracker

Activity tracker

Medicine

Physical medicine and rehabilitation

Journal of Medical Internet Research

Background: New fitness trackers and smartwatches are released to the consumer market every year. These devices are equipped with different sensors, algorithms, and accompanying mobile apps. With recent advances in mobile sensor technology, privately collected physical activity data can be used as an addition to existing methods for health data collection in research. Furthermore, data collected from these devices have possible applications in patient diagnostics and treatment. With an increasing number of diverse brands, there is a need for an overview of device sensor support, as well as device applicability in research projects.

Using Fitness Trackers and Smartwatches to Measure Physical Activity in Research: Analysis of Consumer Wrist-Worn Wearables